Beat-type electromagnetic relay used for high-voltage direct current

Abstract

The invention discloses a beat-type electromagnetic relay used for high-voltage direct current. The beat-type electromagnetic relay comprises a connecting plate, a first movable spring plate, a second movable spring plate, a first static conducting plate, a second static conducting plate, a beat-type drive assembly and a pushing plate. The connecting plate is provided with a first conducting plate and a second conducting plate, each of the first movable spring plate and the second movable spring plate is provided with a fixed end and a free end, the fixed end of the first movable spring plate is fixed onto the first conducting plate, the free end of the first movable spring plate is connected with the pushing plate, the fixed end of the second movable spring plate is fixed onto the second conducting plate, and the free end of the second movable spring plate is connected with the pushing plate; the pushing plate is used for driving the free end of the first movable spring plate and the free end of the second movable spring plate to be connected or disconnected with the first static conducting plate and the second static conducting plate respectively; and the beat-type drive assembly is used for driving the pushing plate to perform a reciprocating motion. The beat-type electromagnetic relay used for high-voltage direct current disclosed by the invention has the advantages of simple structure, low price, cost reduction and the like.

Description

technical field [0001] The invention relates to the technical field of relays, in particular to a snap-in electromagnetic relay for high-voltage direct current. Background technique [0002] In the existing snap-on electromagnetic relay, the moving reed and the armature are connected by riveting, and the two are connected by metal to metal, and the moving reed moves with the armature. Because the air gap distance between the armature and the iron core is very short, in the high-voltage field, this traditional snap-fit ​​electromagnetic relay cannot meet the insulation requirements and is easily broken down. [0003] In the existing snap-on electromagnetic relay, whether it is a single-break point or double-break point contact structure, when the circuit is connected, there is a huge electric repulsion between the two contacts to force the contacts to bounce back, and the arc is accompanied by Occurs, causing serious contact ablation. Especially in the case of extremely hig...

AI Technical Summary

Problems solved by technology

Because the air gap distance between the armature and the iron core is very short, in the high-voltage field, this traditional snap-fit ​​electromagnetic relay cannot meet the insulation requirements and is easily broken down

[0003] In the existing snap-on electromagnetic relay, whether it is a single-break point or double-break point contact structure, when the circuit is connected, there is a huge electric repulsion between the two contacts to force the contacts to bounce back, and the arc is accompanied by occurs, making contact ablation serious

Especially in the case of extremely high current, the pressure between the contacts cannot guarantee the stable contact of the contacts, and the contacts are switched repeatedly in the open and closed states, the relay will burn out quickly, and there is a great risk of explosion

[0004] The existing high-voltage DC relay adopts a solenoid structure, and the contacts are placed in a sealed environment, which is vacuum or high-pressure gas, which is class I pollution, and can achieve high voltage and large Current switching, but this high-voltage DC relay process is complex and expensive

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